TCSC 同步信号对抑制次同步振荡的影响研究

摘要

The impedance characteristics of TCSC in the subsynchronous frequency are very favorable to suppress subsynchron -ous oscillation.As the damping effect can be affected by many factors , it needs more detailed and in -depth research.TCSC shows different impedance response effect with different synchronizing signal .The simulation of IEEE first standard model in PSCAD platform using the test signal method shows that TCSC synchronizing signals have little effect on subsynchronous elec -trical damping.The time-domain simulation for the designed additional subsynchronous damping controller indicates that TC -SC can suppress the subsynchronous oscillation with different synchronizing signals .%　　TCSC在次同步频率下的阻抗特性对于抑制次同步振荡非常有利，但其阻尼效果受到很多因素的影响，还需要对其进行详细深入的研究。在不同的同步信号下，TCSC会呈现出不同的阻抗响应效果，运用测试信号法对IEEE第一标准模型在PSCAD平台下进行仿真表明，TCSC同步信号对次同步电气阻尼的影响作用不大；通过对所设计的次同步附加阻尼控制器进行时域仿真，表明在不同的同步信号下，TCSC都可以达到抑制次同步振荡的效果。